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2. Arenaria L., Sp. Pl. 423. 1753. Gen. Pl. ed. 5. 193. 1754; Boiss., Fl. Or. 1:689. 1867; Edgew. & Hook. f. in Hook. f., Fl. Brit. Ind. 1:235. 1874; Schischk. & Knorr in Kom., Fl. URSS. 6:517. 1936; McNeill in Notes R.B.G. Edinb. 24. 79-155. 1962 & pp. 241-404. 1963.
SHAHINA A. GHAZANFAR & YASIN J. NASIR
Annual or perennial herbs, often caespitose or with decumbent stems, glabrous or glandular hairy. Leaves subulate, setaceous, linear or ovate, elliptic, obovate or orbicular. Inflorescence a mono or dichasial cyme. Sepals 5, free, 1 (-3) nerved. Petals white, 5, usually entire. Stamens 10. Styles 3. Capsule conical to globose dehiscing by 6 teeth. Seeds reniform to subreniform, smooth, turberculate or papillose.
A north temperate genus with c. 250 species. Well represented in Europe and USSR. In Pakistan 7 species are found, some growing at high altitude.
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| 1 |
Erect annuals. Leaves not subulate |
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(2) |
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Caespitose, mat-forming perennials. Leaves fasciculate, subulate, often spiny |
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(5) |
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| 2 (1) |
Leaves subpetiolate, orbicular or often obovate.
Capsule usually as long as the sepals |
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(3) |
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Leaves sessile, usually ovate to ovate-elliptic or
sometimes obovate. Capsule longer than the sepals |
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(4) |
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| 3 (2) |
Bracts lanceolate. Leaves mostly orbicular |
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4 Arenaria orbiculata |
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Bracts ovate. Leaves obovate or ovate-elliptic |
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3 Arenaria neelgerrensis |
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| 4 (2) |
Capsule flask-shaped, thickened at the base |
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1 Arenaria serpyllifolia |
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Capsule not flask-shaped, not thickened at the base |
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2 Arenaria leptoclados |
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| 5 (1) |
Flowers solitary. Sepals 6-9 mm. Capsule included |
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(6) |
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Flowers in corymbose-cymes. Sepals 3-5 mm. Capsule exceeding the sepals |
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5 Arenaria griffithii |
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| 6 (5) |
Sepals 6-6.5 mm. Pedicel shorter than the sepals, glabrous. Flowering shoots leafy |
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7 Arenaria bryophylla |
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Sepals 7-9 mm. Pedicels as long as the sepals, pilose. Flowering shoots with 1-2 pairs of leaves |
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6 Arenaria festucoides |
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Lower Taxa
Related Synonym(s):
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